Overview

overview

10

Static

static

3

tmpixispgqy.exe

windows10-ltsc_2021-x64

10

tmpixispgqy.exe

windows10-2004-x64

10

tmpixispgqy.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/06/2026, 03:22

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General

  • Target
    tmpixispgqy.exe
  • Size 556KB
  • Sample260602-dwxt9ad17m
  • SHA256 399d126766aee48deab0db3c6c69e76b9aa7b14107f677a5db1baba67594a772
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoverypykspapersistenceprivilege_escalationtrojanworm

Malware Config

Signatures

  • Family: Pykspa

    Pykspa is a worm spreads via Skype uses DGA and it's written in C++.

    wormpykspa
  • Detect Pykspa worm 2 IoCs
    worm
  • Modifies WinLogon for persistence 2 TTPs 8 IoCs
    persistence
  • UAC bypass 3 TTPs 17 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 40 IoCs
    persistence
  • Disables RegEdit via registry modification 6 IoCs
    defense_evasion
  • Checks computer location settings 2 TTPs 8 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 28 IoCs
  • Impair Defenses: Safe Mode Boot 1 TTPs 6 IoCs
    defense_evasion
  • Adds Run key to start application 2 TTPs 64 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 16 IoCs
    defense_evasiontrojan
  • Hijack Execution Flow: Executable Installer File Permissions Weakness 1 TTPs 3 IoCs

    Possible Turn off User Account Control's privilege elevation for standard users.

    defense_evasionpersistenceprivilege_escalation
  • Looks up external IP address via web service 8 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 60 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 60 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 19 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • System policy modification 1 TTPs 44 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpixispgqy.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpixispgqy.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2092
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\users\admin\appdata\local\temp\tmpixispgqy.exe*"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Hijack Execution Flow: Executable Installer File Permissions Weakness
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4004
      • C:\Users\Admin\AppData\Local\Temp\hnsdhn.exe
        "C:\Users\Admin\AppData\Local\Temp\hnsdhn.exe" "-C:\Users\Admin\AppData\Local\Temp\tjythxofwffvslaw.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Hijack Execution Flow: Executable Installer File Permissions Weakness
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • System policy modification
        PID:4160
      • C:\Users\Admin\AppData\Local\Temp\hnsdhn.exe
        "C:\Users\Admin\AppData\Local\Temp\hnsdhn.exe" "-C:\Users\Admin\AppData\Local\Temp\tjythxofwffvslaw.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Impair Defenses: Safe Mode Boot
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Hijack Execution Flow: Executable Installer File Permissions Weakness
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • System policy modification
        PID:2256
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\users\admin\appdata\local\temp\tmpixispgqy.exe"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:440
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:4488
  • C:\Windows\arhdsjbtlvwnlfvsz.exe
    arhdsjbtlvwnlfvsz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4324
  • C:\Windows\tjythxofwffvslaw.exe
    tjythxofwffvslaw.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1816
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\tjythxofwffvslaw.exe*."
      2⤵
      • Executes dropped EXE
      PID:4236
  • C:\Users\Admin\AppData\Local\Temp\arhdsjbtlvwnlfvsz.exe
    C:\Users\Admin\AppData\Local\Temp\arhdsjbtlvwnlfvsz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4252
  • C:\Windows\unfdunhbvhkddzrqzfy.exe
    unfdunhbvhkddzrqzfy.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5000
  • C:\Windows\wrllezvrnbgbdbvwhpkee.exe
    wrllezvrnbgbdbvwhpkee.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1620
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\wrllezvrnbgbdbvwhpkee.exe*."
      2⤵
      • Executes dropped EXE
      PID:4076
  • C:\Users\Admin\AppData\Local\Temp\wrllezvrnbgbdbvwhpkee.exe
    C:\Users\Admin\AppData\Local\Temp\wrllezvrnbgbdbvwhpkee.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4928
  • C:\Users\Admin\AppData\Local\Temp\unfdunhbvhkddzrqzfy.exe
    C:\Users\Admin\AppData\Local\Temp\unfdunhbvhkddzrqzfy.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:816
  • C:\Windows\jbspfxqjcnphgbsqyd.exe
    jbspfxqjcnphgbsqyd.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4592
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\jbspfxqjcnphgbsqyd.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:3980
  • C:\Users\Admin\AppData\Local\Temp\jbspfxqjcnphgbsqyd.exe
    C:\Users\Admin\AppData\Local\Temp\jbspfxqjcnphgbsqyd.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1300
  • C:\Windows\jbspfxqjcnphgbsqyd.exe
    jbspfxqjcnphgbsqyd.exe
    1⤵
    • Executes dropped EXE
    PID:1212
  • C:\Windows\arhdsjbtlvwnlfvsz.exe
    arhdsjbtlvwnlfvsz.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:452
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\arhdsjbtlvwnlfvsz.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:2084
  • C:\Windows\unfdunhbvhkddzrqzfy.exe
    unfdunhbvhkddzrqzfy.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4212
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\unfdunhbvhkddzrqzfy.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:3244
  • C:\Windows\wrllezvrnbgbdbvwhpkee.exe
    wrllezvrnbgbdbvwhpkee.exe
    1⤵
    • Executes dropped EXE
    PID:1416
  • C:\Users\Admin\AppData\Local\Temp\tjythxofwffvslaw.exe
    C:\Users\Admin\AppData\Local\Temp\tjythxofwffvslaw.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:60
  • C:\Users\Admin\AppData\Local\Temp\hbutlfavqdhbczsscjdw.exe
    C:\Users\Admin\AppData\Local\Temp\hbutlfavqdhbczsscjdw.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3296
  • C:\Windows\tjythxofwffvslaw.exe
    tjythxofwffvslaw.exe
    1⤵
    • Executes dropped EXE
    PID:1800
  • C:\Windows\hbutlfavqdhbczsscjdw.exe
    hbutlfavqdhbczsscjdw.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:5004
  • C:\Windows\hbutlfavqdhbczsscjdw.exe
    hbutlfavqdhbczsscjdw.exe .
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:412
    • C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
      "C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe" "c:\windows\hbutlfavqdhbczsscjdw.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:1648

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        3
        T1547

        Registry Run Keys / Startup Folder

        2
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Privilege Escalation

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Boot or Logon Autostart Execution

        3
        T1547

        Registry Run Keys / Startup Folder

        2
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Defense Evasion

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Impair Defenses

        2
        T1562

        Disable or Modify Tools

        1
        T1562.001

        Safe Mode Boot

        1
        T1562.009

        Modify Registry

        5
        T1112

        Credential Access

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        3
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        bdellnqtwrdfotucujlmttvy.ezl
        • Path C:\Program Files (x86)\bdellnqtwrdfotucujlmttvy.ezl
        • Size 272B
        • SHA256 f5b389a9db2148320bcf994db8e88e9052d938b32fe7886cf5d4c2dbb6035453
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        bdellnqtwrdfotucujlmttvy.ezl
        • Path C:\Program Files (x86)\bdellnqtwrdfotucujlmttvy.ezl
        • Size 272B
        • SHA256 586271a73528dcc6020439a6272636e19a94a34b21eace1af1571d821d935544
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        hnsdhn.exe
        • Path C:\Users\Admin\AppData\Local\Temp\hnsdhn.exe
        • Size 696KB
        • SHA256 27462587b754ac2bc3ea4de732596011557f65596c8faa9ec3dd9e08cd86cdf0
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        mhskyizawrc.exe
        • Path C:\Users\Admin\AppData\Local\Temp\mhskyizawrc.exe
        • Size 320KB
        • SHA256 0cc02d34d5fd4cf892fed282f98c1ad3e7dd6159a8877ae5c46d3f834ed36060
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        bdellnqtwrdfotucujlmttvy.ezl
        • Path C:\Users\Admin\AppData\Local\bdellnqtwrdfotucujlmttvy.ezl
        • Size 272B
        • SHA256 ac145b6f317494527f5f74d848f77b8b14dc2325bce7268db572dabe602e2433
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        kxjbmznbpvsfzpbuxxkwozmaocifsmcohkk.jbm
        • Path C:\Users\Admin\AppData\Local\kxjbmznbpvsfzpbuxxkwozmaocifsmcohkk.jbm
        • Size 3KB
        • SHA256 8b9ac929ba417d1cc9819afcd7446ecfd39c1ed2f9dc397161f04dac277663f6
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        jbspfxqjcnphgbsqyd.exe
        • Path C:\Windows\SysWOW64\jbspfxqjcnphgbsqyd.exe
        • Size 556KB
        • SHA256 399d126766aee48deab0db3c6c69e76b9aa7b14107f677a5db1baba67594a772
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download